(19)

(11)

EP 4 490 841 A2

(12)

(88) Date of publication A3: 16.05.2024 (43) Date of publication: 15.01.2025 Bulletin 2025/03 (21) Application number: 23850561.4 (22) Date of filing: 31.03.2023

(51) International Patent Classification (IPC):  H03K 19/195(2006.01) H03K 19/17736(2020.01) H03K 19/20(2006.01) H03K 3/38(2006.01) (52) Cooperative Patent Classification (CPC): H03K 19/195; H03K 19/17744; H03K 19/1774 (86) International application number: PCT/US2023/017102 (87) International publication number: WO 2024/030162 (08.02.2024 Gazette 2024/06)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 04.05.2022 US 202217736517 (71) Applicant: Northrop Grumman Systems Corporation Falls Church, VA 22042-4511 (US)

(72) Inventors: WALLACE, Charles, Ryan Orlando, Florida 32832 (US) NIELSEN, Max, E. Riverton, Utah 84065 (US) BRAUN, Alexander, Louis Baltimore, Maryland 21230 (US) DOSCH, Daniel, George Glen Burnie, Maryland 21061 (US) PLEIM, Kurt Halethorpe, Maryland 21227 (US) DAI, Haitao, O. Ellicott City, Maryland 21042 (US) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)